Pump.



PATENTED JUNE 11, 1907.

PUMP.

APPLIOATIQN FILED r1111. 12, 1906.

ll-WW J. P.' LAVIGNE.

WITNESSES 65, 7%? 6i fi 12 rmrrnn snares PATENT orrroni.

JOSEPH P. LAVIGNE, OF DETROIT, MICHIGAN, ASSIGNOR TO THE LAVIGNEMANUFACTURING COMPANY, OF DETROIT, MICHIGAN, A' CORPORATION OF MICHIGAN;

PUMP.

To all whom it Ma concern:

Be it known that'I, JosEPH P. LAvIeNE, a citizen of the United States,residing at Detroit, county of lVayne, State of Michigan, have inventeda certainnew and useful Improvement in Pumps; and I declare thefollowing to be a full, clear, and exact description of the same, suchas will enable others Skilled in the art to .which it pertains to makeand use the same, reference beinghad' to the accompanying drawings,which form apart of this specification. v v

This invention relates to pumps; it has for its object an improved pumpof which the character intended to be used for furnishing -a regular andconstant supply of oil to machinery to be lubricated. The usefulness ofthe pump is'not, however, intended to be limitedto this purpose.

In the drawings :Figure 1, is an elevation showing two individuals of abattery of pumps submerged in a tank; the tank is shown in section andone of the piston guides is shown in section.- Some other parts of thedriving mechanism are also in section. Fig. 2, is an elevation of a pumppiston. Fig. 3, is an end view of the pumppiston. Fig. 4, is anelevation of a guide and indicator.

1, indicates the case of a tank in which the pumps are submerged; in thestructure thereare assembled several pumps, two of which are shown inthe drawing and a description of a single one will suffice for anunderstanding of all.

2, indicates a casing which includes a pump barrel and a valve shell; 3,indicates an oscillating valve actuated by lever 4, which is pivotallyconnected to a reciprocating driving rod '5; this driving rod 5 isactuated by cam 6 and a' similar cam at the opposite endv of the shaft 7(the second cam is not shown). rel 2, and is driven in its reciprocatinIno' Apiston 8 reciprocates in the bartion by a cross'beam 9 which,itself, is re-' eiproca-ted by acrankarm 1Q pivoted to crank pin 1'1 onthe face of a driving wheel Specification of Letters Patent.

Application filed February 12, 1906. Serial No. 300,600.

Patented me 11,1907.

12. The driving wheel 12 is a worm wheel driven by worm 13 from anyconvenient source of motion. The beam 9 engages on a prismatic portion14 of the piston stem and engages between a collar 15 that is fixed withrespect to 'the piston, and a sleeve 16 that is adjustable withreference to the pistonqThe portion of the stem above the prismaticsection 14 has a threaded section v 17 with which the sleeve engages,and the sleeve is interiorly-threaded in order that it may be adjustablealong the threaded portion-17 of the piston stem. Thesleeve is alsosplit and'engages tightly by resilient compression against the threadedpart of the stem. The sleeve reciprocates through an opening 18 in thecase and at its upper end is formed with aprismatic portion 19 tofurnish a wrench hold, and above the-prismatic portion is a graduatedcollar 20. The position of the sleeveon the stem is' indicated by thesegraduations, which act in conjunction with ring graduations 21 on thepistonstem to indicate the relative position of the sleeve and theiston, and u on this relative position oft e sleeve on the iston-dependsthe travel of the pistonpro uced by the cross beam 9. The graduations onthe collar 20 indicate portions of a revolution of a sleeve 16 relativeto the piston stem and the ring graduations 21 indicate the number of.such revolutions.

In operation, the cam 6 timed with reference to the wrist pin '11 toopen the conduit controlled by valve 3' during that period of theupstroke of the piston which follows the engagement between the crossbeam 9 and the s eeve l6 and to close the valve 3 as the cross beambegins to descend, and to openthe conduit for the 'discharge of the oilfrom the pump barrel just prior to the time of contact between the crossbeam and collar 15 and to keep the dischar e open during the periodwhich follows the first contact of the cross beam 9 With'the collar 15on its down stroke. The length of the stroke of the piston whichdetermines the amount of dis-' charge at.each impulse is regulated bythe position of the sleeve 16 on the piston stem. As shown in the drawinthe sleeve 16 is turned entirely down on t e piston stem .and the pistonin this position 'with reference to the sleeve will produceits maximumstroke and a maximum flow ofoil. l

.Yhat I claim is 1. In a pump, the combination of a pump barrel, apiston reciprocating therein", a stem for said piston provided with aprismatic .for actuating said piston, and means whereby the relativeposition of said sleeve and stem determines the travel of the piston substantially as described.

2. The combination of 'a tank, a uinp inclosed therein provided with aarrel, a piston and a stem therefor extending through a wall of saidtank. provided with a prismatic section and with a graduatedterminal, across-head fitting, upon said prismatic sec tion and adapted to slidethereupon, means for reciprocating said cross-head, a sleeve adjustablealong said piston stem and extending through the wall of said tank andprovided with a graduated terminal adapted to coact with thegraduated-terminal of the stem to indicate the travel of said stem,

and means whereby the relative position of said sleeve and stemdetermines the travel of the piston, substantially as described.

3. The combination of a tank, a pump inclosed' therein, said pump beingprovided with a piston and stem jtherefor, vsaid stem extending througha wall of the tank, a sleeve surrounding said stem passing, and adaptedto reciprocate throu h, the wall of said tank, said sleeve beingadjustable along said stern, and means whereby the relative position ofsaid sleeve and stem determines.

the extent of travel of the piston.

In testimony whereof, I sign this specification in the presence of twoWitnesses.

JOSEPH PJLAVIGNE. Witnesses:

CHARLES F. BURTON, LOTTA LEE IIAYTON

